Axcelis Technologies
Builds ion implanters and lifecycle services for silicon and silicon-carbide chip production.
$115.63
After-hours close+0.19 (+0.17%)
At close$115.44(−5.69%)
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Breakdown13F · Form 4
Institutions 123.87%Insiders 1.40%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 30.73M · Float 30.53M · 99.3% free float
Institutions13F, as of Jun 30, 2026
458 holders · 38.07M shares · 111 new positions · 231 increased · 144 reduced · 53 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 5.03M | 16.36% | +92.7K | Aug 7, 2026 |
| FMR LLC | 4.13M | 13.42% | +1.69M | Aug 13, 2026 |
| Vanguard Portfolio Management LLC | 2.48M | 8.07% | −9.4K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 1.39M | 4.51% | +3.7K | Aug 13, 2026 |
| State Street Corp | 1.23M | 4.01% | +42.1K | Aug 7, 2026 |
| Victory Capital Management Inc | 1.13M | 3.69% | −145.0K | Aug 7, 2026 |
| Reinhart Partners, Inc. | 928.7K | 3.02% | −729.1K | Jul 8, 2026 |
| Geode Capital Management, LLC | 833.6K | 2.71% | +22.3K | Aug 12, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 15.30% | 4.91M | 13G | Apr 29, 2025 ↗ |
| FMR LLC | 11.30% | 3.48M | 13G | May 7, 2026 ↗ |
| Vanguard Portfolio Management | 8.14% | 2.50M | 13G | Apr 28, 2026 ↗ |
| Vanguard Capital Management | 5.26% | 1.62M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Russell Low | director, officer: PRESIDENT AND CEO | 154.9K | 0.50% | May 20, 2026 |
| James Gordon Coogan | officer: EVP AND CFO | 37.1K | 0.12% | Mar 3, 2026 |
| Greg Redinbo | officer: EVP MARKETING AND APPLICATIONS | 35.0K | 0.11% | May 20, 2026 |
| John T. Kurtzweil | director | 33.0K | 0.11% | May 20, 2026 |
| Eileen Evans | officer: EVP, General Counsel and Sec'y | 31.3K | 0.10% | May 22, 2026 |
| Christopher Tatnall | officer: EVP Global Customer Operations | 27.6K | 0.09% | May 21, 2026 |
| Gerald M. Blumenstock | officer: EVP, Research, Dev. & Eng. | 20.0K | 0.07% | Jun 16, 2026 |
| Thomas st Dennis | director | 17.7K | 0.06% | May 26, 2026 |
| Robert John Mahoney | officer: EVP Global Operations | 15.6K | 0.05% | May 20, 2026 |
| Tzu Yin Chiu | director | 11.8K | 0.04% | May 18, 2026 |
32 people have not refiled in the last 18 months (949.3K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jun 3, 2026 | Necip Sayinerdirector | Sale | 1,586 | $157.44 | 7,112 |
| May 27, 2026 | Todd Suttonofficer: VP Corporate Controller | Sale | 2,000 | $159.99 | 6,360 |
| May 22, 2026 | Thomas st Dennisdirector | Sale | 900 | $155.37 | 17,695 |
| May 21, 2026 | Gerald M. Blumenstockofficer: EVP, Research, Dev. & Eng. | Sale | 1,161 | $152.70 | 20,493 |
| May 22, 2026 | Eileen Evansofficer: EVP, General Counsel and Sec'y | Sale | 926 | $155.51 | 31,295 |
| May 20, 2026 | Christopher Tatnallofficer: EVP Global Customer Operations | Sale | 1,166 | $149.75 | 27,627 |
| May 19, 2026 | Jeanne Quirkdirector | Sale | 1,789 | $140.22 | 11,400 |
| May 19, 2026 | John T. Kurtzweildirector | Sale | 3,500 | $138.79 | 32,990 |
| May 19, 2026 | Gregory B. Gravesdirector | Sale · 2 lots | 3,225 | $141.61 | 5,473 |
| May 14, 2026 | Gerald M. Blumenstockofficer: EVP, Research, Dev. & Eng. | Sale | 1,015 | $162.32 | 17,293 |
CongressHouse and Senate disclosures
Not reported.